US3283271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Notched semiconductor junction strain transducer
Assignee: Raytheon Co
•
Filing: 1963-09-30
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Granted: 1966-11-01
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Expires: 1983-09-30
Abstract
No abstract record available.
Inventors
- 👤 Sten I Persson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:42
CPC Classifications
H; H04; H04R; H04R23/00; H04R23/006; H10; H10P; H10P34/00; H10P34/40; H10P50/00; H10P50/60; H10P50/64; H10P50/642; H10P50/644; H10P52/00; H10P95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A DEVICE SENSITIVE TO VARIATIONS IN STRESS APPLIED TO A SURFACE OF SAID DEVICE INCLUDING A BODY OF SEIMICONDUCTOR MATERIAL HAVING A RECTIFYING JUNCTION, REGIONS OF P AND N TYPE CONDUTIVITY MATERIAL SEPARATED BY SAID JUNCTION, A NOTCH EXTENDING FROM A SURFACE OF SAID DEVICE THROUGH ONE OF SAID REGIONS OF MATERIAL TO A POINT LESS THAN ABOUT 0.010" FROM SAID JUNCTION, SAID BODY HAVING SELF-RESONANCE WHICH VARIES AS A FUNCTION OF THE VOLUME OF SAID BODY AND THE SIZE OF SAID NOTCH, MEANS FOR PHYSICALLY RESTRICTING MOTION OF A PORTION OF SAID BODY AT ONE SIDE OF SAID NOTCH, AND ELECTROMECHANICAL DRIVING MEANS FOR MOVING AN UNRESTRICTED PORTION OF SAID BODY AT THE OPPOSITE SIDE OF SAID NOTCH TO ALTER THE SIZE OF SAID NOTCH AND CONSEQUENTLY PRODUCE A STRAIN IN SAID JUNCTION IN ACCORDANCE WITH AN INPUT SIGNAL ENCOMPASSING THE KNOWN SELF-RESONANT FREQUENCY OF SAID BODY.
Claim 2
Independent Claim
148 words
A DEVICE SENSITIVE TO VARIATIONS IN STRESS APPLIED TO A SURFACE OF SAID DEVICE INCLUDING A BODY OF SEIMICONDUCTOR MATERIAL HAVING A RECTIFYING JUNCTION, REGIONS OF P AND N TYPE CONDUTIVITY MATERIAL SEPARATED BY SAID JUNCTION, A NOTCH EXTENDING FROM A SURFACE OF SAID DEVICE THROUGH ONE OF SAID REGIONS OF MATERIAL TO A POINT LESS THAN ABOUT 0.010" FROM SAID JUNCTION, SAID BODY HAVING SELF-RESONANCE WHICH VARIES AS A FUNCTION OF THE VOLUME OF SAID BODY AND THE SIZE OF SAID NOTCH, MEANS FOR PHYSICALLY RESTRICTING MOTION OF A PORTION OF SAID BODY AT ONE SIDE OF SAID NOTCH, AND ELECTROMECHANICAL DRIVING MEANS FOR MOVING AN UNRESTRICTED PORTION OF SAID BODY AT THE OPPOSITE SIDE OF SAID NOTCH TO ALTER THE SIZE OF SAID NOTCH AND CONSEQUENTLY PRODUCE A STRAIN IN SAID JUNCTION IN ACCORDANCE WITH AN INPUT SIGNAL ENCOMPASSING THE KNOWN SELF-RESONANT FREQUENCY OF SAID BODY.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |